Came across this neat little project that could be an alternate input device. Not sure if it could double as mouse and gaes controller, or just games.
“…a USB driver which allows you to use wired XBox 360 Controllers via USB, and wireless XBox 360 Controllers via the Microsoft Wireless Gaming Receiver for Windows, on your Mac OSX.”
life tools 
Wha? the Microsoft Wireless Gaming Receiver for Windows will work with that driver for Mac? Sweet. it would be nice to sit on my couch and check my email and change games or even console emulators from a 360 controller.